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Assassin's Creed Odyssey Isu Knowledge guide - Cache and Codex locations

In the final episode of the Fate of Atlantis DLC, the full power of the Staff of Hermes is revealed. To reach their full potential, the Eagle Bearer must find the sources of Isu knowledge to enable their sixth sense.

There are three levels - or sequences - that you can reach, with each new threshold allowing you access to more of the city of Atlantis.

You can get knowledge points from completing quests and side quests, or by finding the Keeper’s Insights hidden around the city. You main source of Knowledge however, are the Isu Caches and Codex found throughout Atlantis.

Here are all of the places I visited to raise my Isu Knowledge level to 3 without completing any of the DLC’s quests beyond the intro mission.

Assassin’s Creed Odyssey Judgement of Atlantis Isu Cache and Codex locations

Many of these locations also house Adamant Ingots, as well as Polemarchs that carry pieces of Dikastes armour for the Rightfully Yours quest.

Doma of Gadiros

Cache and Codex:

Fortified Doma of Mestor

Cache and Codex:

Insight of Blessings

Cache and Codex:

Insight of the Titan

Cache and Codex:

Insight of War

Cache and Codex:

Doma of Elasippos

Cache and Codex:

Fortified Doma of Autochthonos

Cache and Codex:

Doma of Azaes

Cache and Codex:

Doma of Evaimon

Cache and Codex:

The Tinia Archive

Cache and Codex (and Adamant Ingot):

Garden of Benthesikyme

Codex:

Horus Repository

Cache and 3 Codex (and Ingot):

The Consus Archive

Cache and 2 Codex (and Ingot):

Repository of Iris

Cache and 3 Codex (and Ingot):

Doma of Diaprepes

Cache:

Archive of Hebe

Cache and 2 Codex (and Ingot):

Archive of Hephaistos

Cache and 2 codex (and Ingot):

Fortified Doma of Mneseas

Cache:

For more on the last Assassin’s Creed Odyssey DLC, here’s where to find the Keeper’s Insights.

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In this article

Assassin's Creed Odyssey

PS4, Xbox One, PC

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About the Author
James Billcliffe avatar

James Billcliffe

Guides Editor

With 7 years' experience, James (he/him) suffers so you don't have to, creating expert guides for the toughest games and reviews for the biggest blockbuster releases. He has a Master's degree in Journalism and a BA in Linguistics that he never got a chance to flex until Wordle came along.
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